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Fukushima Thyroid Examination Fact Sheet: March 2016This fact sheet was compiled mostly from the official documents and data, some available only in Japanese, for the purpose of reviewing the first four and a half years of the post-accident thyroid ultrasound screening in Fukushima Prefecture. It is intended as a common knowledge base of the history, basic principle and current status of the largest thyroid ultrasound screening undertaken with controversial results. (For the shorter version of the fact sheet, please refer to this).March 2016 Fukushima Thyroid Examination Fact Sheet by Yuri Hiranuma

Introduction

On October 9, 2011, Fukushima Prefecture began the Thyroid Ultrasound Examination (TUE) on about 360,000 residents who were age 18 or younger at the time of the triple disaster of the earthquake, tsunami, and nuclear accident on March 11, 2011. As the exposure to radioactive iodine dramatically increased the incidence of pediatric thyroid cancer cases after the 1986 Chernobyl nu…